Other World Computing offers its OWC Mercury EXTREME Pro 480GB Serial ATA 3Gb/s 2.5″ SSD Solid State Drive, model no. OWCSSDMX480, for $599 with free shipping ($1.25/GB). Although similar 480GB SSDs are available for less, it’s still $150 off and the least expensive OWC Mercury EXTREME Pro SSD of its capacity we’ve seen. It features read speeds of up to 285MB/s, write speeds of up to 275MB/s, a SandForce processor, 512GB total flash memory with 32GB allocated to real-time data redundancy, and more.